Mechanical-Activation-Assisted Combustion Synthesis of SiC

doi:10.3724/SP.J.1077.2007.00263

Abstract

Abstract: Mechanical-activation-assisted combustion synthesis of SiC was conducted with PVC and/or NH4Cl as promoters. The mechanical activation of the Si-C reactants through high-energy attrition milling results in substantial decrease of the ignition temperature and the incubation time for the Si-C combustion reaction. Ultra-fine β-SiC powders with equiaxed grains can be synthesized at the preheating temperature as low as 1050C. The specific surface area (SSA) of the combustion synthesized SiC powders is 4.36m²/g, and the average particle size is less than 5μm.

Key words: mechanical activation, combustion synthesis, promoter, SiC

CLC Number:

TQ174

YANG Kun,YANG Yun,LIN Zhi-Ming,LI Jiang-Tao. Mechanical-Activation-Assisted Combustion Synthesis of SiC[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2007.00263.

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Mechanical-Activation-Assisted Combustion Synthesis of SiC

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